/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/ClusterUnionManager.h
Creates a new cluster union with an automatically assigned cluster union index.
[FClusterUnionIndex](API\Runtime\Chaos\Chaos\FClusterUnionIndex) CreateNewClusterUnion ( const [FClusterCreationParameters](API\Runtime\Chaos\Chaos\FClusterCreationParameters) & Parameters, const [FClusterUnionCreationParameters](API\Runtime\Chaos\Chaos\FClusterUnionCreationParameters) & ClusterUnionParameters )